Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
  • A61Q1/12—Face or body powders for grooming, adorning or absorbing
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
  • A61K8/23—Sulfur; Selenium; Tellurium; Compounds thereof
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
  • A61Q1/02—Preparations containing skin colorants, e.g. pigments
  • A61Q1/08—Preparations containing skin colorants, e.g. pigments for cheeks, e.g. rouge
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
  • A61Q1/02—Preparations containing skin colorants, e.g. pigments
  • A61Q1/10—Preparations containing skin colorants, e.g. pigments for eyes, e.g. eyeliner, mascara

Definitions

• the present invention relates to a process for manufacturing a solid cosmetic composition using plaster and a cosmetic composition obtained by this process.
• plaster as a solidifying agent is advantageous since it makes it possible to replace the compacting operation, usually necessary for obtaining a composition in solid form from pulverulent products, by a molding operation, the implementation of which is more simple, less expensive and allows to obtain more diverse forms.
• this process has the advantage of allowing the incorporation, in a high proportion in the compositions, of "diffusing" fillers such as silica and silicone beads or expanded microspheres of thermoplastic material having a specific mass of 15 to 200 kg / m3 such as those in acrylonitrile / vinylidene chloride / methyl methacrylate terpolymer sold by the company "CASCO-NOBEL” under the name “EXPANCEL 551 DE”.
• "diffusing" fillers such as silica and silicone beads or expanded microspheres of thermoplastic material having a specific mass of 15 to 200 kg / m3 such as those in acrylonitrile / vinylidene chloride / methyl methacrylate terpolymer sold by the company "CASCO-NOBEL" under the name “EXPANCEL 551 DE”.
• a pulverulent material is "hydrophobic" or “hydrophilic"
• the test defined below is carried out.
• a 20 mm diameter test tube is filled with 20 ml of water. 2 grams of powder are poured into the tube without shaking and the behavior of the powder is observed for 5 minutes at maximum. If the powder remains perfectly on the surface, it is considered “hydrophobic”. Otherwise, it is considered “hydrophilic”.
• the calcium sulfate hemihydrate used according to the invention can be in its ⁇ form and / or in its ⁇ form. It can be mixed with at least one setting time modifying agent such as retarders such as sodium citrate and accelerators such as gypsum and sodium sulfates.
• the amount of calcium sulfate hemihydrate suitably represents 15 to 35% by weight, preferably 20 to 30% by weight of the pulverulent mixture (P).
• the hydrophobic fraction (FO) necessarily contains at least one fatty substance and / or at least one powder treated by coating or chemical grafting so as to give it the cosmetic properties of a fatty substance.
• the fatty substances which can be used are all those generally used in cosmetic compositions.
• oils of mineral origin such as petrolatum oil
• oils of animal origin such as lanolin
• oils of vegetable origin such as jojoba oil
• esters of carboxylic acid and of C en-C22 fatty alcohol or with a lower alcohol such as triisocetyl citrate, isopropyl myristate, tridecyl neopentanoate
• fatty alcohols such as oleyl alcohol, isostearyl alcohol, octyldodecanol
• silicone oils, gums or waxes such as alkyldimethicones
• fluorinated oils and their derivatives in particular silicone derivatives.
• the fatty substances can contain at least one additive and / or at least one liposoluble cosmetic active ingredient.
• additives or active agents mention may be made of polymers such as the hexadecene / vinylpyrrolidone copolymer, sunscreens, perfumes, preservatives, antioxidants and liposoluble vitamins.
• the powders treated by coating or chemical grafting, so as to give them the cosmetic properties of fatty substances are pulverulent products of both hydrophobic and hydrophilic nature which have been treated with hydrophobic products, among which there may be mentioned, for example , silicones, lipoamino acids, metallic soaps, fluorinated derivatives, mineral oils, lecithin, isopropyl triisostearoyl titanate, polyethylene and collagen and its derivatives.
• the fatty substance (s) and / or the pulverulent material (s) treated represents (s) at least 1% by weight.
• the hydrophobic fraction (FO) represents 10 to 60% by weight, preferably 20 to 45% by weight of the pulverulent mixture (P).
• the hydrophilic fraction (FI) advantageously contains at least one non-colored hydrophilic filler which is not treated and / or at least one non-colored filler treated with hydrophilicity and / or at least one pigment.
• the hydrophilic treated fillers are pulverulent materials treated by coating or chemical grafting, to make their surface hydrophilic, using materials, such as chitosan, titanium dioxide, silica or hydrophilic polymers, in particular sulfonic polyesters or quaternary polyammonium.
• the hydrophilic fraction (FI) generally represents from 5 to 75% by weight of the pulverulent mixture (P), preferably from 25 to 60% by weight.
• the powder mixture (P) can optionally contain at least one surfactant, which can help wetting and dispersing the powder mixture.
• the surfactant can be nonionic like the oxyethylenated sorbitan esters, cationic like the quaternary ammonium salts, or amphoteric like the betaine derivatives.
• the amount of surfactant introduced does not exceed 5% by weight of the pulverulent mixture (P).
• the present invention also relates to the solid cosmetic composition containing plaster obtained by the process described above.
• This composition contains from 15 to 35% by weight of calcium sulphate dihydrate (CaSO4, 2H2O), preferably from 20 to 30% by weight; 10 to 60% by weight, preferably 20 to 45% by weight of hydrophobic fraction (FO) as described above; 5 to 75% by weight, preferably 20 to 65% by weight, of hydrophilic fraction (FI) as described above, the fatty substance (s) and / or the pulverulent material (s) ( s) treated by chemical coating or grafting to become hydrophobic (s) representing at least 0.1% by weight of the composition.
• CaSO4, 2H2O calcium sulphate dihydrate
• FO hydrophobic fraction
• FI hydrophilic fraction
• This composition optionally contains at most 10% by weight of surfactant and / or at most 10% by weight of cosmetic additives previously dispersed or dissolved in water and / or at most 10% by weight of setting time modifier .
• the weight ratio FI / FO is 0.87.
• the resulting blush contains no aggregates or gaps; it is hard but crumbly and can be easily applied.
• a paste is prepared, as in Example 1, having the formulation given below in grams, which gives, after molding and drying, a dry finished product having the composition indicated below (in% by weight):
• the product obtained is, after molding and drying, in the form of a curved bread, usable with a puff; it contains neither agglomerate nor gap.
• the paste can also be molded in the form of a pencil which can be used as a concealer.
• a paste is prepared, as in Example 1, having the formulation given below in grams, which gives, after molding and drying, a dry finished product having the composition indicated below (in% by weight):
• the powder obtained is in the form of a rectangular loaf usable with a puff or a brush, having neither agglomerate nor gap.
• a paste is prepared, as in Example 1, having the formulation given below in grams, which gives, after molding and drying, a dry finished product having the composition indicated below (in% by weight):
• the make-up obtained is in the form of a curved tablet usable with the finger or with an applicator, and which presents neither agglomerate, nor gap.

Landscapes

• Life Sciences & Earth Sciences (AREA)
• Health & Medical Sciences (AREA)
• Animal Behavior & Ethology (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Chemical & Material Sciences (AREA)
• Inorganic Chemistry (AREA)
• Birds (AREA)
• Epidemiology (AREA)
• Cosmetics (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=9447089

Family Applications (1)

Country Status (10)

Cited By (3)

Families Citing this family (12)

Citations (4)

Family Cites Families (5)

• 1993
  • 1993-05-13 FR FR9305774A patent/FR2705231B1/fr not_active Expired - Fee Related
• 1994
  • 1994-05-04 DK DK94400971.1T patent/DK0624361T3/da active
  • 1994-05-04 AT AT94400971T patent/ATE158164T1/de not_active IP Right Cessation
  • 1994-05-04 EP EP94400971A patent/EP0624361B1/de not_active Expired - Lifetime
  • 1994-05-04 DE DE69405638T patent/DE69405638T2/de not_active Expired - Fee Related
  • 1994-05-04 ES ES94400971T patent/ES2106465T3/es not_active Expired - Lifetime
  • 1994-05-05 CA CA002122972A patent/CA2122972C/fr not_active Expired - Fee Related
  • 1994-05-11 US US08/240,612 patent/US5510107A/en not_active Expired - Fee Related
  • 1994-05-13 JP JP6123283A patent/JP2928790B2/ja not_active Expired - Fee Related
• 1997
  • 1997-12-10 GR GR970403290T patent/GR3025638T3/el unknown

Patent Citations (4)

Also Published As

Similar Documents

Legal Events